Preamplifier



FIG. 1 is a perspective view of a preamplifier.

FIG. 2 is a front-side view of the preamplifier of FIG. 1.

FIG. 3 is a top view of the preamplifier of FIG. 1.

FIG. 4 is a back-side view of the preamplifier of FIG. 1.

FIG. 5 is a left-side view of the preamplifier of FIG. 1.

FIG. 6 is a bottom view of the preamplifier of FIG. 1.

FIG. 7 is a right-side view of the preamplifier of FIG. 1; and,

FIG. 8 is an environmental view of the preamplifier of FIG. 1.

The broken lines consisting of evenly sized short dashes depict parts ofthe preamplifier that form no part of the claimed design; whereas, thebroken lines consisting of long dash and two short dashes define theboundary of the claim, which extends to the boundary but does notinclude the boundary; and the broken lines in FIG. 8, consisting of along dash and one short dash, depict environmental subject matter onlyand form no part of the claimed design.

CLAIM I claim the ornamental design for a preamplifier, as shown anddescribed.